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Stainless steel solder wire with 2.2% flux core and 63/37 composition for electronics, battery tabs and metal repair. Easy-melt formula supports quick small repairs.
Explore STEM science experiment kits with 11 hands-on DIY models, including robots, solar cars, hydraulic machines, flying projects and more.
MG90S Servo is a 9g micro servo motor with semi-metal gears, available in 180° positioning and 360° continuous rotation versions. Ideal for Arduino, RC models, robotics and DIY projects.
This USB card led night light only 0.2W low power, single side 3 2835 LED chips. Pocket & keychain size, plug into any 5V USB power bank/laptop. 5000mAh power bank supports 100hrs continuous lighting, energy-saving with only 40mA working current.
A beginner-friendly UNO R3 compatible starter kit with a CH340 board, breadboard, sensors, LEDs, buzzers, buttons and essential components for hands-on electronics projects.
US-100 ultrasonic distance sensor with temperature compensation. Measures 2–450cm and supports GPIO/UART for Arduino & ESP32.
Dupont Jumper Wires are available in 10cm, 15cm, 20cm, 30cm, and 40cm lengths with male-to-male, male-to-female, and female-to-female connectors for Arduino, Raspberry Pi, ESP32, and breadboard prototyping.
PAM8403 5V audio amplifier board is a compact stereo 3W+3W digital amplifier module, available in basic and volume knob versions. Ideal for DIY speakers, Arduino projects, and portable audio systems.
34-Piece Plastic Gear Set for DIY robotics, Arduino projects, and STEM learning. Includes various gears, racks, pulleys, and mechanical parts for creative builds.
♣ Specifications
Input voltage range: 4-38VDC
Output voltage range: 1.25-36VDC
Output current: 0-5A
Output power: 75W
High efficiency up to 96%
LED power indicator
Built in thermal shutdown function
Built in current limit function
Built in output short protection function
♣ Applications
DIY adjustable bench and project power supplies
Battery charging for lithium, NiCd, and NiMH packs (solar, wind, and off-grid setups)
High-power constant-current LED drivers
Automotive voltage step-down, such as 24V to 12V or 12V to 5V/3.3V
Stepping down power transformers and adapters to a custom voltage
Powering microcontrollers, sensors, and modules from a higher supply
Charging digital devices via the onboard USB port
XL830L Digital Multimeter with LCD backlight supports AC/DC voltage, DC current, resistance, diode and continuity testing. Ideal for electronics repair, DIY projects and electrical troubleshooting.
The YF-S201 Water Flow Sensor delivers accurate pulse output for liquid flow measurement. Ideal for Arduino, Raspberry Pi, automation systems, smart water monitoring, and DIY electronics projects.
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